Documentation Home
MySQL 5.7 Reference Manual
Related Documentation Download this Manual Excerpts from this Manual The users Table

The users table contains a row for each user who has connected to the MySQL server. For each user name, the table counts the current and total number of connections. The table size is autosized at server startup. To set the table size explicitly, set the performance_schema_users_size system variable at server startup. To disable user statistics, set this variable to 0.

The users table has the following columns. For a description of how the Performance Schema maintains rows in this table, including the effect of TRUNCATE TABLE, see Section 21.9.8, “Performance Schema Connection Tables”.

  • USER

    The client user name for the connection, or NULL for an internal thread or user session that failed to authenticate.


    The current number of connections for the user.


    The total number of connections for the user.

Download this Manual
User Comments
Sign Up Login You must be logged in to post a comment.